baber/WOPTO huggingface dataset:
Patent GB-655050-A (GB)
Title: Improvements in or relating to textile spindles
IPC: D01H7/14
Filed: 1947-12-15
Abstract: 655,050. Textile spindle mounting, HONEGGER & CIE. Dec. 15, 1947, No. 33057. Convention date, March 7, 1941. [Class 120(ii)] A textile spindle mounting for spinning and twisting machines comprises a roller bearing 2 for mounting the spindle 1 in a socket 3 movable in the spindle bolster 4, said roller bearing being entirely let in into the movable socket which is itself entirely let in into the spindle bolster.
Patent GB-922402-A (GB)
Title: Process for the deposition of noble metals on glass and on vitrified ceramics, and products obtained by this process
IPC: C03C17/10
Filed: 1959-09-29
Abstract: In a process for coating a glass or vitrified ceramic object with a noble metal (i.e. Au, Pt, Rh, Ir, Os, Pd, Ru, or an alloy of two or more thereof), the object is first coated with a colloidal metallic hydrate, then a colloidal dispersion of silver, and finally treated in a solution containing a noble metal salt and a reducing agent, the reduction being catalysed by the intermediate hydrate/silver film. As described, the intermediate p  film is established by successively treating the object in stannous chloride and silver nitrate solutions.  Suitable reducing agents are hydrogen peroxide, sodium peroxide, benzoyl peroxide and hydrazine hydrate and hydrochloride. The examples disclose the use of noble metal salt solutions containing AuCl3 and Na3RhCl6.
Patent GB-486444-A (GB)
Title: Improvements in vitreous bodies
IPC: C03C3/06
Filed: 1936-12-02
Abstract: 486,444. Glass manufacture. GENERAL ELECTRIC CO., Ltd., PIRANI, M., and PARTRIDGE, J. H. Dec. 2, 1936, No. 33088. [Class 56] A method of making a vitreous or mainly vitreous body having a melting point higher than 1600‹ C. consists in forming a coherent non-vitreous rod substantially of the composition of the body finally required, and heating the rod in a flame to such a temperature that all or most of the material is converted into a glass. The method may be used to vitrefy a mixture composed, for example, of 95 per cent SiO2, 1À4 per cent ZrO2, 2À5 per cent ThO2, 0À1 per cent CaO, and 1À0 per cent BeO. In order to secure uniform distribution of the ingredients, they are mixed mechanically, sintered to form a coherent mass, then ground and sintered again as many times as necessary. The mixture is shaped into a rod which is heated in an atomic hydrogen " flame." Specifications 25887 /10, 190,476, [both in Class 56], 402,400; 461,211, [Group XL], 463,889, and 477,105 are referred to.
Patent GB-206720-A (GB)
Title: An improved device for perforating and holding sheets of paper, bags and the like
IPC: B42F13/12
Filed: 1922-12-05
Abstract: 206,720. Oakley, E. C. F. Dec. 5, 1922. Spiked - prong perforators. - A device for perforating and holding sheets of paper, bags, &c., comprises a fixed part 2 adapted to be secured to a wall &c., a prong or needle 3 fixed thereto, and a part 5 slidably mounted on the part 2 adapted to act as a cover for the outer sharpened end of the prong 3 and also as a striker plate to force the papers &c. on to the prong. As shown, the cover 5 is carried by an angular portion 4 engaging a similar portion on the member 2 and is normally maintained in its innermost position by a spring 6. To prevent the bags &c. from binding, the part 4 is thickened at 10 and the prong is tapered towards the member 2. In use, the cover 5 is drawn out and a corner of the series of bags &c. is placed between the prong and the cover, which is released and struck to force the bags &c. on to the prong. The device may be so formed that the prong tilts downwardly so that the outside bag &c. hangs lower to facilitate handling. In a modification, the cover 5 is carried by rods or tubes telescoping into tubular members on the part 2. Threaders.-According to the Provisional Specification, the prong may be furnished with an eye to receive strength for threading the bags &c. together.
Patent GB-1255095-A (GB)
Title: Air filter
Inventor: CERRATO VINCENZO
IPC: F02M35/12
Filed: 1969-07-01
Abstract: 1,255,095. Air filter for I.C. engine. FRAM CORP. 1 July, 1969 [1 July, 1968], No. 33246/ 69. Heading BIT. [Also in Division Fl] An air filter for an I.C. engine intake comprises a flat casing 1 with a removable top cover 17, which enables a flat pleated filter element (5) to be inserted therein, an inlet manifold 6 delivering air from inlets 7 and 8 to one side of the element along the lower edge of the casing, while filtered air leaves the casing through outlets 13, which open into the carbureter manifold. Inlet 7 points forward of the vehicle to receive cold air, and inlet 8 draws warm air from across the engine. a valve (9) movable by lever 11 closing one or other of the inlets as required. The casing is made in two parts, joined by screws 3. Both parts are of plastics, but an internal metal plate (15) reinforces the side where screws 14 project to mount the casing on the carbureter (Fig. 2, not shown). Tapes (16) on filter element (5) facilitate insertion.
Patent GB-504905-A (GB)
Title: Improvements relating to transparent coloured panels
IPC: B44F1/06
Filed: 1938-11-17
Abstract: 504,905. Ornamental glass panels. BUTTON, H. F. Nov. 17, 1938, No. 33381. Drawings to Specification. [Class 20 (iii)] An imitation leaded window or other transparent panel comprises two sheets of glass with pieces of transparent coloured material sandwiched between them, the edges of these pieces being so arranged that they are hidden by opaque designs formed on the inner surfaces of the two glass sheets. The opaque pattern is formed in obverse on one sheet and in reverse on the other, and may be applied by printing or painting. The coloured transparent material may be of celluloid, gelatine, or the like. The edges of the glass sheets are joined together to provide a watertight joint by cementing or by lapping them over with thin sheet lead. The panels may be used as windows, as decorative panels intended to be hung near a window, or as part of a lamp-shade.
Patent GB-1443145-A (GB)
Title: Investment casting
IPC: B22D27/04
Filed: 1972-07-17
Abstract: 1443145 Casting processes FOSECO INTERNATIONAL Ltd 11 July 1973 [17 July 1972] 33392/72 Heading B3F [Also in Division C5] In order to promote columnar crystallization, an investment mould 12 on a chill plate 11 is surrounded by a cover 13 containing an exothermic composition 14 (possibly including pieces 10) which is fired to heat the mould; the latter is then cooled from the plate 11 and metal is cast in the mould (possibly under vacuum), while a temperature gradient is present, and allowed to solidify. An exothermic composition is specified. It may be preformed or form a lining of the cover or be a powder or mouldable mixture, rammed into the cover 13 before its lid 15 and an anti-piping cover 16 is applied, and may be out of contact with the mould. The cover may be reusable or made of disposable refractory such as aluminium silicate fibre bonded with colloidal silica and include alumina filler. Alumina sol may be used. The chill may be a water-cooled copper plate. A blade may be cast.
Patent GB-177575-A (GB)
Title: Improvements in and relating to lens working and like machines
Inventor: HILL HENRY WILLIAM
IPC: B24B13/02
Filed: 1920-11-29
Abstract: 177,575. Hill, H. W. Nov. 29, 1920. Lenses and curved surfaces of mirrors, grinding and polishing.-In a machine for surfacing lenses, mirrors, lithographic stones, metal sur. face plates, &c., the work is moved over the surfacing-tool, or vice versa, in a curved path, the shape of which continually changes. The invention is shown as applied to a lens-working or like machine, and comprises a base 8 carrying a driven toothed wheel 3 which gears with wheels 1, 2 having different numbers of teeth. On the wheels 1, 2 are adjustably mounted pins 10 carrying sleeves 13 to which are pivoted, by pins 16, the forked ends of arms 15, and within the arms are longitudinally adjustable rods 18 which are secured in the adjusted position by screws 19. The rods are bored at their outer ends to receive a sleeve 21 in which is adjustably mounted a column 22 carrying at its lower end the lens &c. The surfacing-tool 25 is detachably mounted on a post 26 carried by the base 8, and in operation, the work moves over the upper surface of the tool, abrasive material being placed on the tool. The gearing is enclosed by a casing 27 and a flexible screen 30. If a larger movement of the work is required, the pins 10 may be arranged on extensions of the wheels 1, 2. The wheels 1, 2 may be driven from the wheel 3 through idle wheels; the gears may be driven frictionally.
Patent GB-619081-A (GB)
Title: Improvements in or relating to machinery guards
IPC: F16P3/08
Filed: 1946-11-13
Abstract: 619,081. Machinery guards. GENERAL ELECTRIC CO., Ltd., and BALDOCK, F. G. Nov. 13, 1946, No. 33674. [Class 80 (iv)] [Also in Group XXXVII] A guard device or door for preventing access to a machine or high-tension electrical gear is interconnected with the starting or supply gear through a compressed air, vacuum or like circuit so that the drive or supply is only permitted when the guard is closed. The guard shown suitable for a horizontal milling machine comprises a box-like structure having a base 6 secured to the table of the machine, a top 7, a vertical back portion 1 preferably of a transparent material through which the milling head passes, and hinged front doors 9a, 9b and end walls 8. The front doors are adapted to swing open together with their adjacent end walls and are guided by pins (not shown) engaging in guide grooves G in the base 6. The doors carry at their top ends pipes 27, 28 connected at the door hinges by flexible pipes 29, 30 to a compressed air supply and having valves 31, 32 at their inner ends cooperating with a T-piece 24 on the end of a pipe 16, 17 leading to a cylinder 11, Fig. 5, for actuating a motor-starting switch (not shown) through a slide 13 and crank 15. The arrangement is such that whilst the doors 9a and 9b are open no pressure is supplied to the cylinder 11 and spring 14 maintains the switch in the " off " position, the valves 31, 32 being closed under the supply pressure. When the doors are closed, the valves 31, 32 abut against the T-piece 24 and are thereby opened to supply pressure to the pipe 16 to operate the starting switch. The end walls 8 are also adapted to close vents 20 and 21 in branch pipes 18, 19 from the pipe 16 as a further safeguard. When the doors are opened the pressure in pipe 16 and cylinder 11 is released for the switch to open and stop the motor. A clutch may be disengaged and a brake applied to stop the cutter immediately on this operation also. In another arrangement in which the machine is driven by belting, the pressure in cylinder 11 is used to shift the belt from the loose to the fast pulley to drive the machine.
Patent GB-182759-A (GB)
Title: Production of vat dyestuff
IPC: C09B3/22
Filed: 1921-12-14
Abstract: The alkali fusion of benzanthrone is effected in the presence of an inert solvent or diluent and a reducing agent; less alkali than usual is employed.  Suitable solvents are mineral or coal-tar oils boiling at or above the reaction temperature, for example, a purified kerosene boiling above 230 DEG  C.; suitable reducing agents are dextrin, starch, cellulose, or other carbohydrates, or aminophenols. The treatment of "derivatives or analogues" of benzanthrone is also mentioned.
Patent GB-1465737-A (GB)
Title: Thyristors
IPC: H01L29/74
Filed: 1974-07-31
Abstract: 1465737 Semi-conductor devices SIEMENS AG 31 July 1974 [13 Sept 1973] 33725/74 Heading H1K A thyristor comprises a semi-conductor body having at least four zones of alternating conductivity type, of which a first, emitter zone 1 surrounds a control electrode 7 of a second, base zone 2 which extends to a surface of the body, and a buffer zone 8 in the surface of the body between the emitter zone 1 and the control electrode 7 and having at least one gap 10 therein so as to partially surround the control electrode 7, wherein the entire length of the PN junction between the emitter and base zones 1, 2 at the surface lies between the emitter and control electrodes 6, 7. The gap 10 is between 1-10 mm. long and the buffer zone 8 may be formed at the same time as the emitter zone 1 by diffusion. In an alternative embodiment, the control electrode 7 overlaps the buffer zone 8 at the inner boundary thereof. The buffer zone 8 causes control current to concentrate in the area of the gap 10 and hence facilitates rapid ignition.
Patent GB-386407-A (GB)
Title: Improvements relating to the collection of refuse
IPC: B65F3/12
Filed: 1931-12-05
Abstract: 386,407. Scavengers' vehicles ; dustbins. EAGLE ENGINEERING CO., Ltd. and PALMER, R. G., Eagle Works, Warwick. Dec. 5, 1931, No. 33762. [Class 108 (i).] In means for collecting refuse of the kind in which a bin having a slidable lid is adapted to be hooked to a vehicle and inverted to register with the vehicle opening normally closed by a cover, the lid and cover being thereby engaged for simultaneous withdrawal, the lid has an overhanging portion provided with an elongated slot. A dust-bin 5 having loops 5c for engaging hooks 7a on the vehicle is provided with a sliding lid 6 having trunnions 6b which, when the lid is fully opened, engage bearings 5b whereby the lid may be operated by a hinging motion. The lid is provided in an overhanging portion with a slot 6a to serve as a handle and also to engage a projection 8b on the sliding cover 8 of the vehicle opening when the dust-bin is tipped over to register with the vehicle opening for discharge of the refuse into the vehicle. The cover and lid are withdrawn to allow the bin to discharge its contents by manual operation through a lever 10, link 9 and telescopic spring rods 11, 12 provided with an operating handle 11a.
Patent GB-1278095-A (GB)
Title: Semiconductor pressure-electric transducer
IPC: H01L29/84
Filed: 1969-07-04
Abstract: 1278095 Semi-conductor pressure transducers MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 4 July 1969 [19 July 1968 33791/69 Heading H1K Pressure is applied to a rectifying contact of a semi-conductor body doped with a deep-level impurity through a flat plate coated with insulation at least on its surface adjacent the element. The plate is of metallic silicon or of iron (and its alloys), of nickel (and its alloys), of tungsten, of molybdenum, or of tungsten-molybdenum alloys. In general the plate may be coated with an oxide or nitride by sputtering, may be glazed with a vitreous material, or may be coated with a plastic. In the embodiment, a metallic silicon plate coated by evaporation or thermal oxidation with silicon monoxide or with silica is used to apply pressure to a silicon body doped with copper, gold, iron, cobalt or nickel. Alternative semi-conductor bodies may be made of germanium, gallium arsenide, gallium phosphide, indium arsenide, or cadmium selenide. Though only one contact need be rectifying for D.C. operation, two rectifying contacts are necessary for A.C. use.
Patent GB-1360617-A (GB)
Title: Polymer mixtures
IPC: B29C48/03
Filed: 1971-07-20
Abstract: 1360617 Mixing apparatus I M P E R I A L CHEMICAL INDUSTRIES Ltd 29 Oct 1971 [9 Nov 1970 20 July 1971 (2)] 53116/70 34009/71 and 34010/70 Heading B1C [Also in Division B5] In a process for making thermoplastics extrusions (e.g. filaments, films and mouldings), granular thermoplastic polymer or molten thermoplastic polymer is mixed with a feed of additive or reactive substance which is fed in the form of discrete portions each of predetermined weight at a rate related to the metered forwarding rate of the extrusion. The extrusion may be filaments, films or mouldings and the thermoplastic polymer may be a polyester, e.g. poly(ethylene terephthalate) or a polyamide, e.g. poly(hexamethylene adipamide). The discrete portions may be in the form of tablets or capsules containing the additive or reactive substance in powdered or liquid form. The additive may be colouring materials, stabilisers, delustrants or optical brighteners. The reactive substance may be one to modify the thermoplastic polymer. The metering of the thermoplastic polymer plus additive or of the modified thermoplastic polymer may be made by a gear pump or by controlling the speed of a screw extruder. In the screw extruder shown, additive pellets 11 are fed at the desired rate through a feed tube 7 and tangential feed pocket 8 to the screw 2 to which is also fed thermoplastic polymer granules 12. The barrel of the extruder is heated. In the screw pressure melter apparatus of Fig. 3 (not shown), polymer chips are passed by a feed screw (22) on to a melt grid (23) whence the polymer flows into a melt pool (24) which is also fed with pellets of additive or reactant through an inlet (28). Mixing is effected by a paddle stirrer (25) and recycling is effected through orifices (29). An impellor (26) passes the mixture to gear pumps (27) which feed spinnerets. An inert gas is fed to the space above the melt pool. In the screw pressure melting apparatus of Fig. 4 (not shown), polymer chips are fed down a tube (42) while an additive or reactant is fed down a tube (45) on to a screw (41) which screws down the mixture on to a silver plate (44), the melt then being passed through a mixing device (46) which is described in Specification 1,122,493 and thence to spinning equipment.
Patent GB-510868-A (GB)
Title: Process for the manufacture of azo compounds of acid character
IPC: C09B29/16
Filed: 1937-12-08
Abstract: 510,868. Azo compounds. SCHERING AKT.- GES. Dec. 8, 1937, No. 34021. Convention date, Dec. 30, 1936. Samples furnished. [Class 2 (iii)] Bactericidal azo compounds are made by diazotizing an aminobenzene with one unsubstituted sulphonamide group in p-position to the amino group, or with two unsubstituted sulphonamide groups in any position, and coupling with a nitrogen-free naphtholsulphonic acid. In an example, p-aminobenzene sulphonamide is diazotized and coupled with 2:6-naphthol-sulphonic acid. Specifications 933/10, [Class 2 (iii)], and 430,580 are referred to. The samples furnished under Sect. 2 (5) comprise the products from diazotized paminobenzene sulphonamide and 2.7-, 2.8-, 1-4-, 1-5 naphthol sulphonic acids, and 2.3.6-, 2.6.8-m 1.3.8-, 1.3.8- and 1.4.8- naphtholdisulphonic acids. The Specification as open to inspection under Sect. 91 comprises also the preparation of azo compounds of acid character by diazotizing any aromatic, heterocyclic or aromatic-heterocyclic amino compound containing at least one sulphonamide group and coupling with an aromatic compound containing at least two acid groups. One of the latter should be a hydroxyl group, while the second may be a hydroxyl, thiol, carboxyl or sulphonic group. In additional examples, paminobenzene sulphonamide is diazotized and coupled with resorcinol and phloroglycinol respectively. It is also stated that the sulphonamide group or the acid group may be introduced into the aromatic residue after the manufacture of the azo compound. The azo compounds may - also be formed otherwise than by diazotizing and coupling, e.g., by .reacting a nitroso compound containing a sulphonamide group with an aminophenol. This subject matter does not appear in the Specification as accepted.
Patent GB-1222255-A (GB)
Title: Polyester-based coating compositions
IPC: C09D167/00
Filed: 1968-07-17
Abstract: 1,222,255. Polyester coating composition. SHERWIN-WILLIAMS CO. 17 July, 1968 [4 Aug., 1967], No. 34027/68. Headings C3D and C3R. [Also in Division B2] A non-aqueous coating composition includes (a) an organic liquid carrier; (b) a pigment; (c) a resin binder in which 50 to 100% by weight of the polymer solids are polyester; and (d) 1 part per 2-100 parts of polyester of a mark reducing agent which is an amine of formula R 1 R 2 NR 3  where R 1  and R 2  are alkyl or hydroxyalkyl radicals and R 3  is a hydrogen, alkyl or hydroxyalkyl radical, the radicals having from 1-4 C atoms. A thermoplastic resin, e.g. polyvinyl chloride particles of size 5-10Á and/or plasticizers, e.g. dibutyl-, diisodecyl-, dioctyl- or butyl benzyl-phthalates or epoxidized oils and/or heat stabilizers, e.g. Ba, Cd, Zn organic salts and/or emulsifying agents, e.g. lecithin may also be present. The polyester may have free OH groups and may be cured with melamine/formaldehyde or urea/formaldehyde cross-linking agents or it may have ethylenic unsaturation and be crosslinked with styrene. Comprehensive lists of specified components (a), (b) and (d) are given and also lists of constituents of component (c) are given.
Patent GB-732096-A (GB)
Title: A device for picking up and/or retaining small ferrous articles
IPC: H01F7/02
Filed: 1953-12-09
Abstract: 732,096. Magnetic pin holders. SUDALL, G. Dec. 14, 1953 [Dec. 9, 1953], No. 34194/53. Class 128. [Also in Groups XXIII and XXXV] A device for picking up and/or retaining small ferrous articles comprises a pair of non- ferrous plates, namely upper and lower plates 10, 11, defining a space within which are disposed a plurality of permanent magnets 15, 19, the lower plate 11 being dished or concave to form a cavity into which the articles may be attracted and/or retained. As shown, both plates are dished to define a space between them of constant depth; they are circular, of aluminium or moulded thermo-plastic material, and have interfitting flanges 12, 13 between which is applied a sealing compound or a sealing ring. The magnets may be of cylindrical form, and six small magnets 19 may be provided at spaced intervals near the periphery of the plates while four larger magnets 15 may be disposed closer to the centre of the plates, the magnets being located respectively by a circular card former 18 and pegs 14 riveted or moulded integrally with the upper plate 10. The device may be handled by a hand grip 25 flanged at 27, or by a handle 32 connected by a " bayonet " fitting 29, 30, 39 to a groove 28 in the hand grip and itself being split into two sections by another " bayonet " fitting. The device may be used for picking up articles from work benches, shop counters or shelves, or if inverted from the position shown may form a retainer or tray to hold articles on a workbench or in a particular location. Used with the handle it may pick up articles from the floor.
Patent GB-797105-A (GB)
Title: Retractable landing gear for aircraft
Inventor: PERDUE JACK
IPC: B64C25/12
Filed: 1955-11-29
Abstract: 797,105. Aircraft undercarriages. ELECTROHYDRAULICS, Ltd. Oct. 17, 1956 [Nov. 29, 1955], No. 34203/55. Class 4. An aircraft levered suspension type of landing gear comprises an undercarriage structure or leg 1 including ground contacting elements, e.g., a wheel, a shock absorber 6 associated with a bracket 3 pivoted on the same member 3 as the leg 1, and means whereby, on retraction, the bracket 3 is caused to swing in the opposite direction to the structure 1, altering the relative positions of the structure and wheel to shorten the undercarriage. In Figs. 1 and 2, the shock absorber'6 is universally pivoted to the lever 9 at 8, and to the bracket 3 at 5. A fairing 17 is secured to a beam 18 pivoted to the aircraft at 19 and having a crank arm pivoted at 21 to a link 20 also pivoted to the bracket 3 at 22. A link 16 extends between beam 18 and the leg 1. On retraction by a hydraulic jack 15 and a brace 11, the leg 1 swings anti-clockwise, and pivot 21 also moves anti-clockwise about pivot 19. The bracket 3 thus swings clockwise, and the shock absorber is raised relatively to the leg, bringing the axis of lever 9 to the position AB, Fig. 1. When extended, the pivots of brackets 3 are coplanar with the shock absorber axis, so that side loads are eliminated. A down lock (not shown) and an up lock, e.g., bolts on the undercarriage door frame (not shown) are provided.